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Contents
# frozen_string_literal: true
class ReeDate::PrevOccurring
include Ree::FnDSL
fn :prev_occurring do
link :today
link :advance
link :monday
link :days_since
link 'ree_date/functions/constants', -> { DAYS_INTO_WEEK }
end
doc(<<~DOC)
Returns a new date representing the previous occurrence of the specified day of week.
today # => Tue, 24 May 2022
date (optional) # => Wed, 6 Apr 2022
prev_occurring(date, :monday) # => Mon, 28 Mar 2022
prev_occurring(date, :thursday) # => Thu, 31 Mar 2022
prev_occurring(:thursday) # => Thu, 19 May 2022
DOC
contract(Nilor[Date], Or[:monday, :tuesday, :wednesday, :thursday, :friday, :saturday, :sunday] => Date)
def call(date = nil, week_day)
date = date || today
days = nil
if week_day == :sunday
days = 6
else
days = DAYS_INTO_WEEK.fetch(week_day) - 1
end
advance(date, days: -7)
.then { monday(_1) }
.then { days_since(_1, days) }
end
end
Version data entries
126 entries across 126 versions & 1 rubygems